https://bugs.llvm.org/show_bug.cgi?id=38571
Bug ID: 38571
Summary: -Wconstant-logical-operand and yoda conditions
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: ndesaulni...@google.com
CC: lloz...@chromium.org, llvm-bugs@lists.llvm.org,
srhi...@google.com
void foo(int x) {
if (x && 5) {}
if (5 && x) {}
}
The above produces -Wconstant-logical-operand for the first statement, but not
the second.
This was observed while compiling the Linux kernel, as a single translation
unit has a mix of which side the constant logical operand is on, but only some
of the conditionals producing warnings. In these cases, the constant logical
operand is nested a few macros deep.
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